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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBE1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-245.842155
Energy at 298.15K 
HF Energy-245.842155
Nuclear repulsion energy163.322885
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBE1PBE/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3299 3299 0.31 116.48 0.10 0.19
2 A' 3273 3273 0.28 53.16 0.60 0.75
3 A' 3253 3253 0.56 86.65 0.36 0.53
4 A' 1622 1622 10.66 2.50 0.04 0.07
5 A' 1489 1489 32.16 39.24 0.18 0.30
6 A' 1419 1419 7.32 3.22 0.11 0.19
7 A' 1263 1263 7.26 16.88 0.09 0.17
8 A' 1176 1176 17.51 1.55 0.43 0.60
9 A' 1143 1143 9.16 14.68 0.09 0.16
10 A' 1053 1053 4.95 2.54 0.57 0.73
11 A' 956 956 33.72 4.27 0.14 0.25
12 A' 934 934 5.21 2.77 0.51 0.68
13 A' 929 929 2.53 1.12 0.73 0.84
14 A" 927 927 6.02 0.28 0.75 0.86
15 A" 891 891 0.12 0.62 0.75 0.86
16 A" 789 789 63.52 0.14 0.75 0.86
17 A" 662 662 1.16 0.21 0.75 0.86
18 A" 619 619 13.98 0.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12848.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12848.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBE1PBE/6-311+G(3df,2p)
ABC
0.33251 0.32610 0.16464

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.362 0.000
C2 0.609 -0.957 0.000
C3 0.000 1.117 0.000
N4 -0.693 -0.975 0.000
O5 -1.081 0.340 0.000
H6 2.147 0.689 0.000
H7 1.144 -1.895 0.000
H8 -0.180 2.180 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41561.35212.25412.20281.07592.25732.2359
C21.41562.16171.30192.13052.25311.07983.2349
C31.35212.16172.20361.33102.18893.22201.0782
N42.25411.30192.20361.37123.29142.05463.1962
O52.20282.13051.33101.37123.24643.15402.0484
H61.07592.25312.18893.29143.24642.77212.7633
H72.25731.07983.22202.05463.15402.77214.2848
H82.23593.23491.07823.19622.04842.76334.2848

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.017 C1 C2 H7 129.041
C1 C3 O5 110.368 C1 C3 H8 133.548
C2 C1 C3 102.692 C2 C1 H6 128.946
C2 N4 O5 105.661 C3 C1 H6 128.362
C3 O5 N4 109.263 N4 C2 H7 118.942
O5 C3 H8 116.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.129      
2 C 0.399      
3 C 0.350      
4 N -0.593      
5 O -0.471      
6 H 0.142      
7 H 0.149      
8 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.539 1.531 0.000 2.965
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.488 -2.693 0.000
y -2.693 -25.132 0.000
z 0.000 0.000 -30.244
Traceless
 xyz
x -0.800 -2.693 0.000
y -2.693 4.233 0.000
z 0.000 0.000 -3.433
Polar
3z2-r2-6.867
x2-y2-3.356
xy-2.693
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.955 -0.081 0.000
y -0.081 7.583 0.000
z 0.000 0.000 4.428


<r2> (average value of r2) Å2
<r2> 76.060
(<r2>)1/2 8.721